A medium-sized machining center with self-collecting chips

Abstract

The present application discloses a medium-sized machining center with self-chip collection, comprising a chassis, a work surface and a cleaning mechanism. The work surface is rotatably mounted on the top of the chassis inner cavity by a rotating shaft, and the rotating shaft is driven by a flip control motor. Telescopic shells are sleeved on both ends of the work surface, and a plurality of mounting grooves are provided on the upper and lower side surfaces of each telescopic shell. A semicircular slide groove is provided on the side wall of the chassis inner cavity, and a sliding block is provided on the side wall of one of the telescopic shells. A transmission structure is provided in the inner cavity of the work surface, and a cleaning mechanism is arranged in the chassis inner cavity. By adopting the technical solution, in daily use, when cleaning is required, the flip control motor drives the rotating shaft to rotate, and the transmission structure controls a pair of telescopic shells to approach each other and then flip 180° together with the workbench, and then the outer ends of the pair of telescopic shells are spread open and pressed against the chassis inner cavity. At this time, the worker fixes the workpiece on the outward surfaces of the pair of telescopic shells, and at the same time, the cleaning mechanism cleans the surfaces of the pair of telescopic shells facing the chassis inner cavity, without waiting for the cleaning process, thereby effectively improving the production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field related to vertical machining centers, and particularly to a medium-sized machining center with self-collecting chips. Background Art

[0002] During the machining process of valve castings, machining centers are usually used. For some high-precision valve castings, such as valves used in the fields of aerospace and precision chemical engineering, they have extremely high requirements for dimensional accuracy, geometric tolerances, and surface roughness. Machining centers can meet these requirements through precise programming and control. Moreover, when mass-producing valve castings, using a machining center can achieve automated machining by programming standardized programs, improve production efficiency, and reduce production costs. And the machining center can operate continuously for a long time to ensure the stability of product quality.

[0003] During the machining of valve castings by a machining center, chips will remain on the workbench. If not cleaned in time, the workbench surface will be unclean. When clamping the workpiece, extra time is required to clean the tabletop and wipe the positioning surface to ensure accurate installation of the workpiece, which will increase the clamping time of the workpiece and reduce the machining efficiency.

[0004] To solve the above technical problems, in the prior art, there appears a waste collection and cleaning device for a medium-sized machining center with self-collecting chips (publication number CN118386014B). It drives the lead screw to rotate through a cleaning flipping control motor, and the lead screw drives the translation frame to reciprocate on the chute frame. Cooperating with several driving gears, all cleaning heads rotate simultaneously, so as to clean the surface of the machining platform. However, its existing defects are as follows:

[0005] 1. When the cleaning operation is in progress, the translation frame reciprocates on the surface of the machining platform. Workers need to wait for the cleaning mechanism to complete the action before clamping the workpiece onto the machining platform, which affects the production efficiency;

[0006] 2. The lower ends of each cleaning head are radially arranged and cannot fit well with the installation grooves on the surface of the machining platform. The chips remaining in the installation grooves will affect the installation of the workpiece, and there is also the defect that the chips are scattered everywhere during the cleaning process and are difficult to collect. Summary of the Invention

[0007] The present invention aims to solve one of the technical problems existing in the prior art.

[0008] The present application provides a medium-sized machining center with chip self-collection, including a chassis, a workbench surface and a cleaning mechanism. The top of the chassis is open, and the workbench surface is rotatably installed at the top of the inner cavity of the chassis through a rotating shaft, which is driven by a flipping control motor. Telescopic shells are sleeved at both ends of the workbench surface. A plurality of mounting grooves are formed on the upper and lower side surfaces of each telescopic shell. A semi-circular sliding groove is provided on the side wall of the inner cavity of the chassis. The two ends of the semi-circular sliding groove are respectively provided with a starting section and an ending section extending horizontally outwards. A slider is provided on the side wall of one of the telescopic shells, and the slider is slidably matched with the semi-circular sliding groove. A transmission structure for driving connection with the rotating shaft is arranged in the inner cavity of the workbench surface, and the cleaning mechanism is arranged in the inner cavity of the chassis;

[0009] Wherein, the transmission structure is used to control the outer ends of a pair of telescopic shells to first disengage from the side wall of the inner cavity of the chassis, then rotate 180° together with the workbench surface, and then the outer ends are tightly abutted against the side wall of the inner cavity of the chassis when the rotating shaft rotates clockwise / counterclockwise, in cooperation with the semi-circular sliding groove and the slider.

[0010] The transmission structure includes an I-shaped cavity, which includes an upper transverse groove and a lower transverse groove that penetrate left and right, and a connecting groove connecting the middle parts of the upper transverse groove and the lower transverse groove. A gear is rotatably installed in the connecting cavity. The rotating shaft is fixedly connected with the gear and rotatably connected with the workbench surface. Telescopic connecting pairs are installed in both the upper transverse groove and the lower transverse groove. Each telescopic connecting pair is simultaneously meshed with the gear through a moving rack. Different ends of each telescopic connecting pair 55 are fixedly provided with T-shaped plates. T-shaped sliding rods are slidably penetrated through each T-shaped plate. One end of each T-shaped sliding rod is fixedly connected with the inner end of the adjacent telescopic shell, and a first support spring is arranged between the other end and the adjacent T-shaped plate.

[0011] The telescopic connecting pair 55 includes a pair of mutually embracing L-shaped frames. Each pair of L-shaped frames includes a baffle plate, which is fixedly connected with the moving rack / T-shaped plate through a connecting rod respectively. A second support spring is arranged between the pair of baffle plates.

[0012] The cleaning mechanism includes a chip pushing plate that is driven by an actuator and slidably installed in the inner cavity of the chassis along the axis of the rotating shaft. Sliding platforms are fixedly provided at both ends of the chip pushing plate. A reciprocating frame is arranged on the top of the pair of sliding platforms. A brush roller is rotatably installed between the pair of reciprocating frames. Fixed racks are arranged on both side walls of the inner cavity of the chassis parallel to the axis. Transmission structures are arranged on both of the pair of reciprocating frames;

[0013] Wherein, each of the transmission structures is meshed with the corresponding fixed rack, and is used to drive the brush roller to rotate and control the reciprocating frame to reciprocate along the axis of the rotating shaft relative to the sliding platform when the chip pushing plate and each sliding platform move along the axis of the rotating shaft.

[0014] The linkage structure includes a pair of linkage gear shafts respectively rotatably installed on the tops of the sliding tables, a transmission gear shaft respectively rotatably installed in each reciprocating frame, a transmission gear shaft rotatably installed in the chip pushing plate and the pair of sliding tables, and a pair of reciprocating connection pairs arranged at the bottoms of the reciprocating frames and drivingly connected to the linkage gear shafts. A transmission gear pair for drivingly connecting each transmission gear shaft and the end of the brush roller is arranged in each reciprocating frame;

[0015] Wherein, the transmission gear shaft meshes and drives with each fixed rack and each linkage gear shaft, each linkage gear shaft meshes and drives with the corresponding transmission gear shaft, and each transmission gear shaft meshes and drives with the corresponding transmission gear pair. When the transmission gear shaft rotates, the reciprocating frame is driven by the reciprocating connection pair to perform a reciprocating motion parallel to the axis of the rotating shaft relative to the sliding table.

[0016] The reciprocating connection pair includes a loop groove arranged on the circumferential wall of the middle part of the linkage gear shaft. The loop groove is elliptical, and both ends extend towards the two ends of the linkage gear shaft respectively. A connecting plate is fixedly arranged at the bottom of the reciprocating frame. The connecting plate is sleeved on the middle part of the linkage gear shaft through a sliding hole, and a transmission block slidably matched with the loop groove is arranged on the inner wall of the sliding hole.

[0017] The axes of each linkage gear shaft and each transmission gear shaft are parallel to the axis of the rotating shaft, and the axis of the transmission gear shaft is perpendicular to the axis of the rotating shaft.

[0018] Both ends of the transmission gear shaft are meshed and driven with the corresponding fixed rack through gears, and second helical gears are fixedly arranged at both ends. One end of each linkage gear shaft is meshed and driven with each second helical gear through a third helical gear.

[0019] The transmission gear pair includes a helical gear shaft and a spur gear shaft, both of which are rotatably installed in the reciprocating frame. The helical gear shaft is meshed and driven with the transmission gear shaft through a first helical gear and is meshed and driven with the spur gear shaft through a spur gear pair. The spur gear shaft is fixedly connected to the end of the brush roller.

[0020] The transmission gear shaft includes a straight tooth column and a first helical gear. The straight tooth column is meshed and driven with the linkage gear shaft through a second spur gear.

[0021] The beneficial effects of the present invention are as follows:

[0022] Installation grooves are formed on both the upper and lower surfaces of each telescopic shell. Through these installation grooves, workers fix the workpiece on the outer surfaces of a pair of telescopic shells facing outward. After the processing is completed and the workpiece is taken off, the flipping control motor controls the movement of the transmission structure, so that the outer ends of the pair of telescopic shells are separated from the inner side wall of the machine box, the slider disengages from the starting section and enters the semi-circular chute. After the workbench and each telescopic shell are flipped by 180°, the other side surfaces of each telescopic shell face upward, and then the outer ends of each telescopic shell abut against the inner side wall of the machine box, and the slider enters the terminal section. Workers can fix the workpiece on the outer surfaces of a pair of telescopic shells facing outward at this time, and the cleaning mechanism can clean the installation grooves on the inner surfaces of the pair of telescopic shells simultaneously.

[0023] Compared with the prior art, there is no need to wait for the cleaning mechanism to clean the surface of the workbench, and the cleaning mechanism is arranged inside the chassis. By adapting the shape of the peripheral wall to the surface of a pair of telescopic shells that face inward and have several mounting grooves, the chips in each mounting groove can be effectively cleaned. Moreover, since the cleaning operation can be carried out during loading, processing, or unloading, compared with the prior art, there is no need to increase the running speed of the cleaning mechanism as much as possible in order to complete the chip cleaning as soon as possible for installing the workpiece. The cleaning mechanism of the present application has sufficient window periods to clean each mounting groove, ensuring that the chips in each mounting groove are fully cleaned, and the chips cleaned will accumulate in the inner cavity of the chassis, avoiding the chips from splashing everywhere and facilitating the collection of chips. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Isometric view (complete) of the machining center in the embodiment of the present application;

[0025] Figure 2 Isometric view (half-section of the chassis) of the machining center in the embodiment of the present application;

[0026] Figure 3 Isometric view of the inner wall structure of the chassis in the embodiment of the present application;

[0027] Figure 4 Isometric view of the assembly of the workbench surface, telescopic shell, and transmission structure in the embodiment of the present application;

[0028] Figure 5 Isometric view of the assembly of the telescopic shell and the transmission structure in the embodiment of the present application;

[0029] Figure 6 Isometric view of the transmission structure in the embodiment of the present application;

[0030] Figure 7 State diagram of the transmission structure when the workbench surface is not flipped in the embodiment of the present application;

[0031] Figure 8 State diagram of the transmission structure when the workbench surface is flipped 90° in the embodiment of the present application;

[0032] Figure 9 State diagram of the transmission structure when the workbench surface is flipped 180° in the embodiment of the present application;

[0033] Figure 10 Isometric view (complete) of the cleaning mechanism in the embodiment of the present application;

[0034] Figure 11 Isometric view of the linkage structure in the embodiment of the present application;

[0035] Figure 12 Isometric view of the linkage gear shaft in the embodiment of the present application.

[0036] Reference numerals

[0037] 1 - Chassis, 2 - Workbench surface, 3 - Cleaning mechanism, 31 - Actuator, 311 - Sliding drive motor, 312 - Screw rod, 313 - Screw hole, 32 - Chip pusher plate, 33 - Sliding table, 34 - Reciprocating frame, 35 - Brush roller, 36 - Fixed rack, 41 - Rotating shaft, 42 - Flip control motor, 43 - Telescopic housing, 44 - Installation groove, 45 - Semi - circular chute, 46 - Starting section, 47 - Terminal section, 48 - Slide block, 5 - Transmission structure, 51 - Upper horizontal groove, 52 - Lower horizontal groove, 53 - Connecting groove, 54 - Gear, 55 - Telescopic connection pair, 551 - Moving rack, 552 - L - shaped frame, 5521 - Baffle, 5522 - Connecting rod, 5523 - Second support spring, 56 - T - shaped plate, 57 - T - shaped slide bar, 58 - First support spring, 7 - Chip discharge port, 8 - Linkage structure, 81 - Linkage gear shaft, 811 - Third helical gear, 82 - Transmission gear shaft, 821 - Straight tooth column, 822 - First helical gear, 823 - Second straight gear, 83 - Transmission gear shaft, 831 - First straight gear, 832 - Second helical gear, 84 - Reciprocating connection pair, 841 - Loop groove, 842 - Connecting plate, 843 - Slide hole, 85 - Transmission gear pair, 851 - Helical gear shaft, 852 - Straight gear shaft, 853 - Straight gear pair. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0039] The terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. generally belong to the same category, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects.

[0040] Next, the machining center provided by the embodiments of the present application will be described in detail in conjunction with the accompanying drawings through specific embodiments and their application scenarios.

[0041] Embodiment 1:

[0042] like Figures 1 to 12 As shown, the embodiment of the present application provides a medium-sized machining center with chip self-collection, including a chassis 1, a work table 2 and a cleaning mechanism 3, wherein the top of the chassis 1 is open, and the work table 2 is rotatably mounted on the top of the inner cavity of the chassis 1 through a rotating shaft 41, and the rotating shaft 41 is driven by a flip control motor 42, and telescopic shells 43 are sleeved on both ends of the work table 2, and a plurality of mounting grooves 44 are provided on the upper and lower side surfaces of each telescopic shell 43, and a semicircular slide groove 45 is provided on the side wall of the inner cavity of the chassis 1, and a starting section 46 and an end section 47 extending horizontally outward are respectively provided at both ends of the semicircular slide groove 45, and a slider 48 is provided on the side wall of one of the telescopic shells 43, and the slider 48 is slidably matched with the semicircular slide groove 45, and a transmission structure 5 connected to the rotating shaft 41 is provided in the inner cavity of the work table 2, and the cleaning mechanism 3 is arranged in the inner cavity of the chassis 1;

[0043] Among them, the transmission structure 5 is used to cooperate with the semicircular groove 45 and the slider 48 when the shaft 41 rotates clockwise / counterclockwise, to control the outer ends of a pair of telescopic shells 43 to first detach from the inner cavity side wall of the chassis 1, then rotate 180° with the work table 2, and then the outer ends are pressed against the inner cavity side wall of the chassis 1.

[0044] In this embodiment of the present application, due to the adoption of the above-mentioned structure, when a pair of telescopic shells 43 need to be cleaned toward the outside, the flip control motor 42 is operated, the rotating shaft 41 rotates clockwise / counterclockwise, and the pair of telescopic shells 43 are controlled to approach each other through the transmission structure 5 until the slider 48 enters the semicircular slide groove 45 from the starting section 46 / the final section 47. At this time, the slider 48 is pressed against the inner peripheral wall of the semicircular slide groove 45, and the flip control motor 42 continues to operate, driving the work table 2 and each telescopic shell 43 to rotate 180° clockwise / counterclockwise until the slider 4 8 is pressed against the top surface of the terminal section 47 / initial section 46. At this time, the side of each telescopic shell 43 that needs to be cleaned is flipped into the inner cavity of the chassis 1, and the side originally facing the inner cavity of the chassis 1 is flipped to face outward, and then the flip control motor 42 continues to run, and the transmission structure 5 controls a pair of telescopic shells 43 to separate from each other until the outer ends of a pair of telescopic shells 43 are pressed against the side walls corresponding to the inner cavity of the chassis 1, and the slider 48 also slides to the inner end of the terminal section 47 / initial section 46, and then the cleaning mechanism 3 is activated to clean the inner side surface of a pair of telescopic shells 43 and the corresponding mounting grooves 44.

[0045] Embodiment 2:

[0046] like Figures 2 to 9As shown, in this embodiment, in addition to including the structural features of the foregoing embodiment, the transmission structure 5 includes an I-shaped cavity, which includes an upper transverse groove 51 and a lower transverse groove 52 that penetrate through from left to right, and a connecting groove 53 that communicates with the middle parts of the upper transverse groove 51 and the lower transverse groove 52. A gear 54 is rotatably installed in the connecting cavity. The rotating shaft 41 is fixedly connected to the gear 54 and rotatably connected to the workbench surface 2. Telescopic connection pairs 55 are installed in both the upper transverse groove 51 and the lower transverse groove 52. Each telescopic connection pair 55 is simultaneously engaged with the gear 54 through a moving rack 551. Different ends of each telescopic connection pair 55 are fixedly provided with T-shaped plates 56. T-shaped sliding rods 57 are slidably penetrated through each T-shaped plate 56. One end of each T-shaped sliding rod 57 is fixedly connected to the inner end of the adjacent telescopic housing 43, and a first support spring 58 is provided between the other end and the adjacent T-shaped plate 56.

[0047] Furthermore, the telescopic connection pair 55 includes a pair of mutually embracing L-shaped frames 552. Each of the pair of L-shaped frames 552 includes a baffle 5521, which is fixedly connected to the moving rack 551 / T-shaped plate 56 through a connecting rod 5522 respectively. A second support spring 5523 is provided between the pair of baffles 5521.

[0048] In this embodiment of the present application, due to the adoption of the above structure, when the slider 48 is located at the inner end of the starting section 46, the rotating shaft 41 rotates clockwise. Through the meshing of the gear 54 with each moving rack 551, a pair of telescopic connection pairs 55 are driven to move relatively, causing a pair of T-shaped plates 56 to approach each other. Each support spring 58 moves together with the corresponding T-shaped plate 56, pushing the corresponding T-shaped slide rods 57 towards the rotating shaft 41. A pair of telescopic shells 43 approach each other, and their outer ends disengage from contact with the inner cavity side wall of the chassis 1 until each T-shaped plate 56 abuts against the outer wall of the table surface. Each T-shaped slide rod 57 enters the upper transverse groove 51 and the lower transverse groove 52 respectively. The end portions of the moving racks 551 away from the corresponding T-shaped plates 56 respectively abut against the free ends of the T-shaped slide rods 57. The slider 48 enters the semi-circular arc groove, and the center of the semi-circular arc groove is located on the axis of the rotating shaft 41. At this time, the supporting force provided by each support spring 58 to the corresponding L-shaped frame 552 is greater than the frictional force of the slider 48 sliding in the semi-circular arc groove, so that each moving rack 551 no longer moves relatively but rotates around the central axis of the rotating shaft 41 together with the gear 54. During this process, a pair of telescopic shells 43 remain in a closed state until the workbench surface 2 and a pair of telescopic shells 43 are flipped 180°. The slider 48 abuts against the top surface of the terminal section 47. At this time, the slider 48 cannot continue to rotate around the central axis of the rotating shaft 41. The continuously rotating gear 54 can only drive a pair of moving racks 551 to continue to move relatively. A pair of baffles 5521 in each telescopic connection pair 55 approach each other, each support spring 5523 deforms, each T-shaped plate 56 remains in contact with the side wall of the workbench surface 2, and each moving rack 551 moves towards the T-shaped plate 56 connected to another telescopic connection pair 55, pushing each T-shaped slide rod 57 outwards from the upper transverse groove 51 / the lower transverse groove 52. Each support spring 58 is compressed and shortens to store elastic potential energy. A pair of telescopic shells 43 separate, and the slider 48 slides towards the inner end of the terminal section 47 until the slider 48 abuts tightly against the inner end of the terminal section 47, and the outer ends of a pair of telescopic shells 43 also abut tightly against the inner cavity side wall of the chassis 1.

[0049] When the slider 48 is located at the starting, ending and ending sections 47, the rotating shaft 41 rotates counterclockwise, and through the meshing of the gear 54 and each movable rack 551, a pair of telescopic connecting pairs 55 are driven to move toward the corresponding T-shaped plate 56, and the supporting spring 2 5523 in each telescopic connecting pair 55 is deformed to release elastic potential energy, thereby pushing each pair of baffles 5521 to separate from each other, each T-shaped plate 56 to maintain contact with the side wall of the work table 2, and each movable rack 551 to move away from the T-shaped plate 56 connected to another telescopic connecting pair 55, and each supporting spring 1 58 releases elastic potential energy, pushing each T-shaped slide bar 57 to move into the upper horizontal groove 51 / lower horizontal groove 52, a pair of telescopic shells 43 are closed, and the slider 48 enters the semicircular arc groove. At this time, the supporting force provided by each supporting spring 1 58 to the corresponding L frame 552 is greater than the friction force of the slider 48 sliding in the semicircular arc groove, so that each movable rack 551 no longer moves relatively but moves with the gear 54. The pair of telescopic shells 43 are kept in a closed state during the process until the working table 2 and the pair of telescopic shells 43 are turned over 180°, and the slider 48 abuts against the top surface of the starting section 46. At this time, the slider 48 cannot continue to rotate about the central axis of the rotating shaft 41, and the continuously rotating gear 54 can only drive a pair of movable racks 551 to continue to move relative to each other. The pair of baffles 5521 in each telescopic connection pair 55 remain separated under the support of each supporting spring 2 5523, pushing a pair of T-shaped plates 56 to separate from each other and break away from the fit with the side wall of the working table 2. Each T-shaped slide bar 57 is separated from the corresponding upper transverse groove 51 / lower transverse groove 52, and each T-shaped plate 56 abuts against the inner end surface of the corresponding telescopic shell 43 and pushes the pair of telescopic shells 43 to separate, and the slider 48 slides toward the inner end of the starting section 46 until the slider 48 abuts against the inner end of the starting section 46, and the outer ends of a pair of telescopic shells 43 also abut against the side wall of the inner cavity of the chassis 1.

[0050] Embodiment 3:

[0051] like Figure 2 , Figure 3 , Figures 10 to 12 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the cleaning mechanism 3 includes a chip pusher plate 32 driven by an actuator 31 and slidably installed in the inner cavity of the chassis 1 along the axis of the rotating shaft 41, and sliding tables 33 are fixedly provided at both ends of the chip pusher plate 32, and a pair of sliding tables 33 are provided with reciprocating frames 34 on the top, and a brush roller 35 is rotatably installed between the pair of reciprocating frames 34, and fixed racks 36 are provided on both side walls of the inner cavity of the chassis 1 parallel to the axis, and a transmission structure 5 is provided on the pair of reciprocating frames 34;

[0052] Among them, each of the transmission structures 5 is engaged with the corresponding fixed rack 36, and is used to drive the brush roller 35 to rotate and control the reciprocating frame 34 to reciprocate along the axis of the rotating shaft 41 relative to the sliding table 33 when the chip pusher plate 32 and each sliding table 33 move along the axis of the rotating shaft 41.

[0053] Further, the actuator 31 includes a sliding drive motor 311, which is installed outside the chassis 1. The output shaft extends into the inner cavity of the chassis 1 and is connected to a screw 312. The screw 312 is in transmission connection with the chip pushing plate 32 through a screw hole 313. A chip discharge port 7 is provided on one side of the bottom of the chassis 1 away from the sliding drive motor 311. When the chassis 1 is placed, a cushion block or machine feet can be provided at the bottom to make the chip discharge port 7 suspended above the ground.

[0054] Further, the linkage structure 8 includes a pair of linkage gear shafts 81 respectively rotatably installed on the tops of the sliding tables 33, transmission gear shafts 82 respectively rotatably installed in the reciprocating frames 34, a transmission gear shaft 83 rotatably installed in the chip pushing plate 32 and the pair of sliding tables 33, and a pair of reciprocating connection pairs 84 provided at the bottoms of the reciprocating frames 34 and in transmission connection with the linkage gear shafts 81. A transmission gear pair 85 for driving the end of the brush roller 35 in transmission connection with the transmission gear shafts 82 is provided in each reciprocating frame 34;

[0055] Wherein, the transmission gear shaft 83 is in meshing transmission with each fixed rack 36 and each linkage gear shaft 81. Each linkage gear shaft 81 is in meshing transmission with the corresponding transmission gear shaft 82, and each transmission gear shaft 82 is in meshing transmission with the corresponding transmission gear pair 85. When the transmission gear shaft 82 rotates, the reciprocating frame 34 is driven by the reciprocating connection pair 84 to perform a reciprocating motion parallel to the axis of the rotating shaft 41 relative to the sliding table 33.

[0056] Further, the reciprocating connection pair 84 includes a loop groove 841 provided on the circumferential wall of the middle part of the linkage gear shaft 81. The loop groove 841 is oval, and both ends extend towards the two ends of the linkage gear shaft 81 respectively. A connecting plate 842 is fixedly provided at the bottom of the reciprocating frame 34. The connecting plate 842 is sleeved on the middle part of the linkage gear shaft 81 through a sliding hole 843. A transmission block for slidingly matching with the loop groove 841 is provided on the inner wall of the sliding hole 843.

[0057] Further, the axes of each linkage gear shaft 81 and each transmission gear shaft 82 are parallel to the axis of the rotating shaft 41, and the axis of the transmission gear shaft 83 is perpendicular to the axis of the rotating shaft 41.

[0058] Further, both ends of the transmission gear shaft 83 are in meshing transmission with the corresponding fixed racks 36 through first spur gears 831, and second helical gears 832 are fixedly provided at both ends. One end of each linkage gear shaft 81 is in meshing transmission with each second helical gear 832 through a third helical gear 811.

[0059] Further, the transmission gear pair 85 includes a helical gear shaft 851 and a spur gear shaft 852, both of which are rotatably installed in the reciprocating frame 34. The helical gear shaft 851 is in meshing transmission with the transmission gear shaft 82 through a first helical gear 822 and in meshing transmission with the spur gear shaft 852 through a spur gear pair 853. The spur gear shaft 852 is fixedly connected to the end of the brush roller 35.

[0060] Further, the transmission gear shaft 82 includes a straight tooth column 821 and a first helical gear 822. The straight tooth column 821 is in meshing transmission with the linkage gear shaft 81 through a second straight gear 823.

[0061] In this embodiment of the present application, due to the adoption of the above structure, when cleaning the side walls of a pair of telescopic housings 43 located in the inner cavity of the chassis 1, the sliding drive motor 311 operates, the screw 312 rotates, and the chip pushing plate 32 is driven to move towards the chip discharge port 7 by cooperating with the screw hole 313 until the side wall of the chip pushing plate 32 coincides with the chip discharge port 7. Then the sliding drive motor 311 reverses, and through the cooperation of the screw 312 and the screw hole 313, the chip pushing plate 32 and each sliding table 33 are driven to move away from the chip discharge port 7 until each reciprocating frame 34 disengages from below each telescopic housing 43. During this process, the transmission gear shaft 83 meshes with the fixed rack 36 through the first straight gear 831. When the chip pushing plate 32 and each sliding table 33 move along the axis of the rotating shaft 41, the transmission gear shaft 83 rotates, and at the same time, a pair of second helical gears 832 rotate, driving a pair of linkage gear shafts 81 to rotate through a pair of third helical gears 811. When the pair of linkage gear shafts 81 rotate, the loop grooves 841 provided on their peripheral walls rotate together, causing the corresponding transmission blocks to reciprocate between the side of the loop groove 841 close to the second helical gear 832 and the side of the loop groove 841 far from the second helical gear 832. The connecting plate 842 and the reciprocating frame 34 then reciprocate along the axis of the linkage gear shaft 81. During the process of the transmission gear shaft 82 moving together with the reciprocating frame 34, the straight tooth column 821 can maintain contact with the second straight gear 823. The rotating linkage gear shaft 81 meshes with the straight tooth column 821 through the second straight gear 823, driving the transmission gear shaft 82 to rotate. Then the first helical gear 822 drives the helical gear shaft 851 to rotate, and the rotating helical gear shaft 851 drives the brush roller 35 to rotate through the spur gear pair 853, achieving the following effects:

[0062] When the chip pushing plate 32 moves along the axis of the rotating shaft 41 in the inner cavity of the chassis 1, the brush roller 35 moves together with the chip pushing plate 32 and at the same time, it will also reciprocate along the axis of the rotating shaft 41 relative to the chip pushing plate 32.

[0063] It should be noted that in this document, the terms "including", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0064] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. A medium-sized machining center with self-collecting chips, comprising a chassis, a workbench surface and a cleaning mechanism, characterized in that, The top of the chassis is open, and the work surface is rotatably mounted on the top of the chassis inner cavity through a rotating shaft, and the rotating shaft is driven by a flip control motor. Both ends of the work surface are sleeved with telescopic shells, and the upper and lower side surfaces of each telescopic shell are provided with a plurality of mounting grooves. A semicircular slide groove is provided on the side wall of the chassis inner cavity, and the two ends of the semicircular slide groove are respectively provided with a starting section and an end section extending horizontally outward. A slider is provided on the side wall of one of the telescopic shells, and the slider is slidably matched with the semicircular slide groove. A transmission structure connected to the rotating shaft is provided in the inner cavity of the work surface, and a cleaning mechanism is arranged in the inner cavity of the chassis; The transmission structure is used to cooperate with the semicircular slide groove and the slider to control the outer ends of a pair of telescopic shells to first separate from the side wall of the inner cavity of the chassis when the shaft rotates clockwise / counterclockwise, and then rotate 180° with the work surface, and then the outer ends of the telescopic shells are pressed against the side wall of the inner cavity of the chassis; The transmission structure includes an I-shaped cavity, which includes an upper transverse groove and a lower transverse groove that pass through the left and right sides, and a connecting groove that connects the middle parts of the upper transverse groove and the lower transverse groove. A gear is rotatably installed in the connecting cavity, and the rotating shaft is fixedly connected to the gear and rotatably connected to the work table. Telescopic connecting pairs are installed in the upper transverse groove and the lower transverse groove. Each telescopic connecting pair is simultaneously engaged with the gear through a moving rack. T-shaped plates are fixed at different ends of each telescopic connecting pair, and T-shaped sliding rods are slidably penetrated on each T-shaped plate. One end of each T-shaped sliding rod is fixedly connected to the inner end of an adjacent telescopic shell, and a supporting spring is provided between the other end and the adjacent T-shaped plate.

2. The medium-sized machining center with self-collecting chips according to claim 1, characterized in that, The telescopic connection pair comprises a pair of mutually embracing L frames, each of the pair of L frames comprises a baffle plate, which is respectively fixedly connected to the movable rack / T-shaped plate through a connecting rod, and a supporting spring 2 is arranged between the pair of baffle plates.

3. A medium-sized machining center with self-collecting chips according to claim 1, characterized in that, The cleaning mechanism comprises a chip pusher plate driven by an actuator and slidably installed in the inner cavity of the chassis along the axis of the rotating shaft, a sliding table is fixedly provided at both ends of the chip pusher plate, a reciprocating frame is provided on the top of a pair of sliding tables, a brush roller is rotatably installed between the pair of reciprocating frames, fixed racks are provided on both side walls of the inner cavity of the chassis parallel to the axis, and a transmission structure is provided on the pair of reciprocating frames; Wherein, each transmission structure is meshed with a corresponding fixed rack, and is used to drive the brush roller to rotate and control the reciprocating frame to reciprocate along the axis of the rotating shaft relative to the sliding table when the chip pusher plate and each sliding table move along the axis of the rotating shaft.

4. The medium-sized machining center with self-collecting chips according to claim 3, characterized in that, It also includes a linkage structure, which includes a pair of linkage gear shafts rotatably mounted on the top of each sliding platform, a transmission gear shaft rotatably mounted in each reciprocating frame, a transmission gear shaft rotatably mounted in a chip pusher plate and a pair of sliding platforms, a pair of reciprocating connection pairs arranged at the bottom of each reciprocating frame and connected to each linkage gear shaft, and each reciprocating frame is provided with a transmission gear pair connected to each transmission gear shaft and the end of the brush roller; Among them, the transmission gear shaft is meshed with each fixed rack and each linkage gear shaft for transmission, each linkage gear shaft is meshed with the corresponding transmission gear shaft for transmission, and each transmission gear shaft is meshed with the corresponding transmission gear pair for transmission. When the transmission gear shaft rotates, the reciprocating frame is driven by the reciprocating connection pair to perform reciprocating motion parallel to the axis of the rotating shaft relative to the sliding table.

5. The medium-sized machining center with self-collecting chips according to claim 4, characterized in that, The reciprocating connection pair includes a loop groove provided on the circumferential wall of the middle part of the linkage gear shaft. The loop groove is oval, and both ends extend towards the two ends of the linkage gear shaft respectively. A connecting plate is fixedly provided at the bottom of the reciprocating frame. The connecting plate is sleeved on the middle part of the linkage gear shaft through a sliding hole, and a transmission block that is slidably matched with the loop groove is provided on the inner wall of the sliding hole.

6. The medium-sized machining center with self-collecting chips according to claim 4, characterized in that, The axes of each of the linkage gear shafts and each of the transmission gear shafts are parallel to the axis of the rotating shaft, and the axis of the transmission gear shaft is perpendicular to the axis of the rotating shaft.

7. The medium-sized machining center with self-collecting chips according to claim 4, characterized in that, Both ends of the transmission gear shaft are in meshing transmission with corresponding fixed racks through gears, and second helical gears are fixedly provided at both ends. One end of each of the linkage gear shafts is in meshing transmission with each of the second helical gears through a third helical gear.

8. A medium-sized machining center with self-collecting chips according to claim 4, characterized in that The transmission gear pair includes a helical gear shaft and a spur gear shaft, both of which are rotatably installed in the reciprocating frame. The helical gear shaft is in meshing transmission with the transmission gear shaft through a first helical gear and is in meshing transmission with the spur gear shaft through a spur gear pair. The spur gear shaft is fixedly connected to the end of the brush roller.

9. The medium-sized machining center with self-collecting chips according to claim 8, characterized in that, The transmission gear shaft includes a straight tooth column and a first helical gear. The straight tooth column is in meshing transmission with the linkage gear shaft through a second spur gear.

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